It is personal but works.
[[[UIApplication sharedApplication] statusBar] setTintColor:[UIColor redColor] withDuration:3.2]
Of course, that will be rejected in the store.
Ideally, you can simply add a category to the UIStatusBar and override drawRect: which I used to tint my navigation strings, but it looks like this class is also private.
There are probably a few hackers who might hurt you, but you still run the risk of throwing your application away later.
Perhaps the apple will open it later, as it was with navigation and tabs?
source share